Setting up a mailer ID
This 9-digit number is required when using Electronic Return Receipt. To get this number, you need to
submit Form 5053, Bulk Proof of Delivery to the USPS.
1. Tap the Settings (gear) icon in the global toolbar.
2. Scroll down to the Mail Settings section.
3. Tap Postage Refill.
4. Tap Mailer ID.
5. Enter the 9-digit number using the keypad.
Note: if you do not have a Mailer ID and need to obtain one, tap on the link How to obtain a
Mailer ID from the USPS for instructions.
6. Tap Apply. The Mailer ID now appears in the display.
Managing envelope printing
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